weak的名詞形式

weak名詞形式為weakness

例句如下，請你仔細體會和理解吧

1、

He became very weak towards the end of his life.

他臨終時很虛弱。

2、

He was a weak little mouse of a man.

他是個懦弱無能的人。

3、

I was always weak in the science subjects.

我總是學不好理科。